Makale Koleksiyonu
https://hdl.handle.net/11421/19423
2024-03-29T15:04:13Z
2024-03-29T15:04:13Z
New dispatching rules and due date assignment models for dynamic job shop scheduling problems
Teymourifar, A.
Öztürk, G.
https://hdl.handle.net/11421/19812
2019-10-21T19:44:08Z
2018-01-01T00:00:00Z
New dispatching rules and due date assignment models for dynamic job shop scheduling problems
Teymourifar, A.; Öztürk, G.
In this paper, new due date assignment models and dispatching rules have been designed for the dynamic job shop scheduling problem. All of them have competitive results compared to the models from previous studies. The proposed dispatching rules have been evolved based on the modified and composite features of jobs. They have been compared with successful methods from the literature in a simulated environment. The simulation model has been validated by comparing the results with an analytical method. One of the rules has the best results in comparison with the other dispatching rules from the literature cited in this study. Another important matter which is considered in this paper is that the due date assignment model must be compatible with the used dispatching rule. Based on this approach, new due date assignment models are developed, which have the best results when combined with some dispatching rules. Copyright © 2018 Inderscience Enterprises Ltd.
2018-01-01T00:00:00Z
An Integrated MCDM Model for Occupational Safety Specialist Selection
Öztürk, Kamışlı Zehra
Toptancı, Şura
https://hdl.handle.net/11421/19813
2020-02-24T18:05:31Z
2017-01-01T00:00:00Z
An Integrated MCDM Model for Occupational Safety Specialist Selection
Öztürk, Kamışlı Zehra; Toptancı, Şura
For businesses in the public and private sectors, the selection process of occupational safety specialist is critical since these employees identify and prevent work-related hazards. In the field of human resource management, using an effective and accurate model for the selection of these employees is especially valuable. In this study, the occupational safety specialist problem is considered for a Mutual Health and Safety Unit. The selection is made among five candidates who pass pre-selection process. An integrated multi-criteria decision making model based on Benefits, Opportunities, Costs and Risks (BOCR) criteria has been developed for this study. AHP is used to determine the weights of selection criteria and COPRAS is used to select the most pertinent personnel in correlation the selection criteria. To determine BOCR priorities a five-point scale and for other pairwise comparisons Saaty’s 1-9 scale are used. The effectiveness of the proposed model is demonstrated in a real application; For businesses in the public and private sectors, the selection process of occupational safety specialist is critical since these employees identify and prevent work-related hazards. In the field of human resource management, using an effective and accurate model for the selection of these employees is especially valuable. In this study, the occupational safety specialist problem is considered for a Mutual Health and Safety Unit. The selection is made among five candidates who pass pre-selection process. An integrated multi-criteria decision making model based on Benefits, Opportunities, Costs and Risks (BOCR) criteria has been developed for this study. AHP is used to determine the weights of selection criteria and COPRAS is used to select the most pertinent personnel in correlation the selection criteria. To determine BOCR priorities a five-point scale and for other pairwise comparisons Saaty’s 1-9 scale are used. The effectiveness of the proposed model is demonstrated in a real application
2017-01-01T00:00:00Z
Theoria, praxis, poiesis: A continuum scheme
Potur, A. A.
Kayihan, K. S.
https://hdl.handle.net/11421/19811
2019-10-21T19:44:07Z
2011-01-01T00:00:00Z
Theoria, praxis, poiesis: A continuum scheme
Potur, A. A.; Kayihan, K. S.
The present age provides that the new production technologies are in a continuous experimental production in terms of both quantitative and rapidness criteria. Thinking and testing speed comes closer with these experiences. Knowledge management systems begin to be more important when knowledge and experience generated in the virtual environment with the increased processing of information exceeds the individual's processing capacity. The continuous transformation process with new technologies, organizational models and cross-distance communication, installs a variety of responsibilities to both academic and professional environment. In this study, based on Aristotle's fundamental "theory" (theoria), "practice" (praxis), "poetik" (poiesis), parser for disciplinary point of view will be discussed related to "thinking", "doing" and "creating" actions. The different nature of design disciplines in relation to theoretical knowledge, practical knowledge, and creative knowledge will also be discussed
2011-01-01T00:00:00Z
U-type assembly line balancing with ergonomic factors for balance stability [Sürdürülebi·li·r denge i·çi·n ergonomi·k faktörleri· i·çeren u-ti·pi· montaj hatti dengelemesi·]
Güner, Banu
Hasgül, Servet
https://hdl.handle.net/11421/19810
2020-02-19T20:34:01Z
2012-01-01T00:00:00Z
U-type assembly line balancing with ergonomic factors for balance stability [Sürdürülebi·li·r denge i·çi·n ergonomi·k faktörleri· i·çeren u-ti·pi· montaj hatti dengelemesi·]
Güner, Banu; Hasgül, Servet
In this paper, we present a new mathematical model of U-type assembly line balancing problem based on the performance factors of the operators, the amount of energy used and incompatibility between the tasks. Many researchers worked on U type line balancing problems are focused on minimizing of number of workstations. However, this may cause overloaded work assignments to workers. Excess workload may cause fatigue and carefulness and consequently output rate of the line fluctuates, quality problems arise, and risk of work accidents is increased. In order to tackle with the mentioned problems and to provide the stability, an integer programming model that includes some ergonomic factors is proposed. In this study, model versions are examined by considering ergonomic factors on test problems from the literature. We conclude that the suggested model may be very useful to make decisions on allocating tasks to workers in U-type assembly lines.
2012-01-01T00:00:00Z